Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4986172 | Tribology International | 2017 | 27 Pages |
Abstract
In this study, three oil-soluble phosphonium-based ionic liquids (ILs) were synthesized and then investigated them as potential lubricating additives. The friction-reduction and antiwear performances of the ILs as lubricant additives in pentaerythritol oleate (PETO) and trimethylolpropane trioleate (TMPTO) were evaluated on an Optimol SRV-IV oscillating reciprocating friction and wear tester. The results indicated that tetradecyltrihexylphosphonium O,Oâ²-diethyldithiophosphate (IL3=TTPâDDP) exhibited considerably better lubrication properties than commercially available tricresyl phosphate (TCP) by performing very well at 200 °C. SEM and XPS were performed to analyze the worn surfaces and revealed the fabrication of tribofilm composed of Fe(OH)O, Fe3O4, FePO4 and FeSO4, which played a crucial role in the excellent lubricating behaviours of the ILs-additived lubricants.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Lili Zhu, Gaiqing Zhao, Xiaobo Wang,